Re: 65 Burb body mounts
 

i would try brothers truck parts!!

Re: 65 Burb body mounts
 

Ron or Lewis

Mine 1s a 1966 GMC Burb

Help me understand how the parts pages work.
In the page here it shows part #3838523 next to the second item down. Then the next 4 lines are blank. Does that mean the the 3838523 part is good for each of those lines?

The 63-66 Ser. 10 (exc. 4/WD) would take part 3838523 in positions 2,3,4,5 if that is correct. The 30 would have positions 6 & 7 because of the longer body.

I've not counted mine, but I've heard from 8-16 mounts quoted as required. Not counting position 1 (which is the same as a PU) are there 4 more down each side?? Also, I don't see an upper and lower on mine. Just a single sqwashed mount. Mine look round when looking under the vehicle and I'm 100% sure, nothing has ever been fixed or replaced on mine. Ha ha


I'm sure it is moot, because there appears to be only the #3946246 out there.

ROYL
If those work, let us know.


http://i12.photobucket.com/albums/a2...psc5cd4626.png

Thanks guys.

Re: 65 Burb body mounts
 

there are 8 body mount positions. 1 insulator mounts top of the frame and the other on the lower side. those rubber tabs unite inside of the frame hole. the part nbrs superseeded. doesn't mean that they are the same but can be used, one can always trim them down if you desire 1 3/4" instead of 2". someone did say the hole was larger in the new one. you can always bush them. these insulators were used up into about 2002 blazers I believe,
Lewis is an old gm partsman whose dad had a GMC dealership in the day. he has all of the old parts books for these truck. he shows up from time to time on Jollies old GMC site. he is the one that gave me the parts nbrs. wonderful old gentleman.
I have seen kits for the 69-72 suburban that the insulators were round instead of rectangular and I think that they are available from some of these reproduction retailers
here is the original quote again. the flat part of it is under 3/4", not by much and the raised portion is about another 0.050" or so.
the following is what Lewis Matkin sent to me. the pictures are mine and
I will have some more later for you as I have to check something out

Ron, this is Lewis. Please forgive me for not getting back sooner, but I
have been busy in my work for the church I serve. I checked both my
65-66 parts manual and my 67-72 parts manual. This is what I discovered:
1964-6 body mounts are p/n 3794779, w/dimentions of 1.76" w; 3.00" l;
0.92" thick, needing 8 (up & lwr same). The 67-8 p/n is 3909351 up &
lwr, 69-72 uses 3909351 as the lwr, but p/n 3946246 is the upr. No
dimentions are given for these cushions, and it seems that the frame
changed in '69. Qty's in 67-8 are 16, with 69-72 requiring 10 of each.
If you have dimentional axcess to the later cushions, these 64-66
dimentions should help you. Like you, I suspect that the 67-8 cushions
will work, but there is no superseded p/n's between the body styles. I
can tell you that years ago I bought cab mounts for my 65 and the p/n's
had superseded to the mounts for the 67-72 cabs. I hope that this info
is of some assistance in answerring this question.

the dimensions sound right. the .92" high includes the raised section
around the bolt hole.
The measurement excl the raised section is between about .73-.74" high
hope that helps

Ithink that they wouldn't be to hard to make .the bonding of the rubber to the steel so that it stays together is the question. if on has access to a milling machine they could thickness them properly put the lip on and in business. i do have a hunk of rubber which appears to be the appropriate denseness and hardness for it. my brother got it about 25 years ago. he has been dead for 20 so I cannot ask him about it. it did come from C.P.Anderson Rubber, but the dips--t that I talked to there was no help in trying to get more from them, and of course when it is a small order; don't bother me. in other words it wasn't worth his time to check it out. they did about 10 years ago have a branch here in Victoria but it was closed down , now we know why. they didn't like dealing with individuals even if you were a business
ron

Re: 65 Burb body mounts
 

GVDobler, Can't help on the service manual, confused as well. Like you said, at this point, ya can't get the right one anyway.


Thx Ron. You mentioned these wouldn't be hard to make, guess the market (potential sales) for 60-66 panel/burbs isn't enough? This post mentioned someone was going reproduce the correct 60-66 rectangular insulator/cushions, this was in 2009, but apparently didn't happen ... http://67-72chevytrucks.com/vboard/s...1&postcount=23



Here are some pics comparing the originals and the ones I bought (3946246), showing the difference in the hole diameters:

http://i1100.photobucket.com/albums/...psb1999924.jpg

http://i1100.photobucket.com/albums/...psa9ef8e4f.jpg

=========================
The pictures you have Ron, of yours earlier in this thread, the steel bonded to one side looks to be the same size as the rubber, but these the steel is an 1/8" wider, which won't allow it to fit inside the channel in a couple locations. Would need to grind off the excess, which dthela acknowledged he did.

And as described earlier in this thread by dthela and carryallnuts, one needs account for the 1/4' larger diameter hole, with spacer material and/or enlarging the hole in your frame.
==========================

here's pics of my 65 Burb mounts, they aren't too squashed...http://i1100.photobucket.com/albums/...ps1cbb0d90.jpg

http://i1100.photobucket.com/albums/...psb1ef47f9.jpg

http://i1100.photobucket.com/albums/...pse3ed8611.jpg

Re: 65 Burb body mounts
 

Contacted GMC Pauls to follow-up, here's an update on any potential to get somebody to make the correct cushions for 60-66 Burbs/panels. Sounds like a good company who's in touch with the need, and said they have asked the company again to re-evaluate demand for these.

On Jan 28, 2013, at 11:44 AM, GMCPauls Truck Parts <robbinspd1199@yahoo.com> wrote:
Hi, Roy
To date only the 1967-72 Suburban / Panel body mounts have been made. The manufacturer has been satisfied with the demand
but they still have not begun tooling up to make the 60-66 versions which are smaller in size as you are aware.
Sorry we couldn't help with this!!
My Very Best
Sky @ GMCPauls
Online Catalog- http://www.gmcpauls.com
GMCPauls Truck Parts
505 Adams Drive
Rockville, IN 47872
Fax: 773-442-0103
========================================

Re: 65 Burb body mounts
 

Depending on the year and model.

gmpartswiki.com free GM part number searches .

https://lh5.googleusercontent.com/-v...800/image0.jpg
https://lh5.googleusercontent.com/-B...800/image2.jpg
https://lh4.googleusercontent.com/-h...00/image19.jpg
http://www.gmpartswiki.com/getbigpage?pageid=25926
http://www.gmpartswiki.com/getbigpage?pageid=25927
http://www.gmpartswiki.com/getbigpage?pageid=25928

Re: 65 Burb body mounts
 

So your point is reproduction cushions would not be limited to the rectangular ones: 3794779, but would include the square looking ones, shown above?

Re: 65 Burb body mounts
 

I'm trying to get some current info on body mounts for my '66 Chevy Suburban.
It seems the GM Parts Direct ones, p/n 3946246 are discontinued and no longer available and those were the ones Classic Industries were selling as p/n G2423 and no longer available.
So, what has someone here successfully used for there Suburban??

Re: 65 Burb body mounts
 

I believe that the square ones may be 60-62 but please correct if this is not correct
ron

Re: 65 Burb body mounts
 

Hi there, I have been searching for body mounts also . I have been talking with the truck and car shop in Orange Ca, they are in the process of reproducing them should be ready by the first of the year, first prototypes should be done any day
Maybe give them a call

Re: 65 Burb body mounts
 

Who did you talk with at Truck and Car Shop ---- I'll definitely give them a call.

Re: 65 Burb body mounts
 

sorry I just saw your post the guys name is Steve, I will be there on Friday or Saturday and will inquire more and post the info then

Re: 65 Burb body mounts
 

No worries --- thanks --- I'll be going to Pomona on the 7th and will see them at the Swap Meet...
Let us know what you find out...

Re: 65 Burb body mounts
 

The Truck Stop in Orange Ca. Just got their 60-66 Sub body mount kit in stock looks pretty good just picked up a set today. No hardware yet but they are working on that. 170.00 bucks

Re: 65 Burb body mounts
 

thks for the heads up, i will be needing a kit...

Re: 65 Burb body mounts
 

Do the rectangular mounts come with the round spacers? I see the square ones do. I am assuming the square ones are for the cab?

I called the Truck Shop last week and the woman that I spoke with said they don't carry any body mounts for a mid 60's Suburban. Did the kit happen to have a part number? If so, could you post it? I have been looking for body mount cushions for over 6 months. It's great to see that these are now available.

Re: 65 Burb body mounts
 

hi there when you call the shop or go there ask for Steve or Mike they are the Suburban guys. Not sure if there is a part number yet, I understood they got the first 3 sets in last week, maybe they are gone already but mike said they will have more coming in this week

Re: 65 Burb body mounts
 

I bought a set today, it took about 10 minutes on hold but she came back and said they had them. I should have them in a few days.

Re: 65 Burb body mounts
 

I got the last set of the first six sets today --- should be in my hands early next week. Steve said more to arrive shortly.

Re: 65 Burb body mounts
 

Got mine today they are pretty thin!

Re: 65 Burb body mounts
 

I picked mine up yesterday and was able to lay them out this evening. They are a little thinner than the stock ones as Grandpa54 pointed out. The material looks to be a little denser, or that might just be because they are new. All in all they are a fairly solid reproduction.

I have one question though. There are a total of 8 of the large square cushions. I know that four of them mount at the floor board location in the front cab. The other four I can only assume are for a panel or not required for a Suburban? Not sure on those. I went through the photos of the disassembly of my Suburban and the only other body mounts are the ones in the front of the frame for the core support. Obviously, the square cushions won't fit there. Any idea on those? I hope I am not missing something that's sitting right in front of my nose.

Re: 65 Burb body mounts
 

they may be covering all bases here at once, but were not the early 60s cab mounts (insulators) square? I have some early (i Believe) rad mount insulators square but not that large
the other thing with the frt rad mounts is the frame bracket it self. it seems that most suburbans and panel had the mount with the bonded insulator(eg in following pic) while pick/ups didn't have this feature; they were a wider bracket and riveted to the frame. perhaps this extra rubber has to do with that???????????????.
http://imagizer.imageshack.us/v2/160.../dscn1664w.jpg
My feelings are with the longer and larger expanse of sheet metal with both the suburban and the panel that this extra insulator was added to help stop fatiguing in the sheet metal. in the pickup there was a separation between cab body and box so that there are 2 separate functions
ron

Re: 65 Burb body mounts
 

This is great news! Thanks for sharing here.
You said they are thinner, what is the thickness on the rectangular ones?

From Ron's post <from Lewis>: "...1964-6 body mounts are p/n 3794779, w/dimentions of 1.76" w; 3.00" l; 0.92" thick, needing 8 (up & lwr same)."

Thickness includes the raised half moon portion of the rubber, i think, so the rubber thickness listed for original ones are supposed to be ~3/4"?

Re: 65 Burb body mounts
 

the height of the insulator excluding the raised part is .720"(23/32"). shy of 3/4"
ron

Re: 65 Burb body mounts
 

Ron,
I assume you are talking about the original mounts vs the new repro ones? Anybody who's got a set in hand, can you measure the thickness, please? Folks say they are "thinner" than original. Called Truck Shop and they didn't have that info handy... none in stock ~2 weeks ago.
:chevy:

Re: 65 Burb body mounts
 

According to Steve, I got the last set until new shipment arrives.
Just checked one of mine........
Without raised section: .594" to .610"
Raised portion: .682" to .704"
The rubber does seem to be higher durometer (denser), and should not compress as much.
So, we're talking about less than .10" difference --- should not be a problem..

Re: 65 Burb body mounts
 

Billy: are are you saying .010 or .100" which is closer to 1/8" which could cause a few alignment problems such as doors if you are using the regular front body mount insulator.
these trucks though were well compensated with the use of shims to tweek theses sort of adj.
It does look like they are selling a complete suburban mounting kit and the others are also perhaps compensated for in height
ron

Re: 65 Burb body mounts
 

Thank you!

Another favor, can you measure the two hole diameters from your Truck Shop reproductions?

Here's what I think they are supposed to be:
my measurements from old mount
rubber side hole diameter - ~0.75"
steel side hole diameter - ~0.44"

(Chevy parts book, ron, lewis)
length - 3.0"
width - 1.76"
height (thickness) - 0.92" w/ raised portion, 0.72" w/o raised portion

Thx,
Roy

Re: 65 Burb body mounts
 

Re: 65 Burb body mounts
 

Page 89 of Jan 2015 catalog. Don't see it in their on-line catalog yet...

http://i1100.photobucket.com/albums/...psgbd5mwaz.jpg

Re: 65 Burb body mounts
 

I've call the truck shop a 3-4 times, and emailed them. When I get thru, they didn't have the mounts in stock to measure, or I'm on hold for 15-20 minutes and never get thru. Can someone with a pair measure the 2 hole diameters? Just want to make sure.

Thx,
Roy

Re: 65 Burb body mounts
 

Re: 65 Burb body mounts
 

these mounts have changed over the years. the spec that I have given were for the years 60? and 63up to 66. the orig part number superseded in the 67 - 72 series where that hole size i believe did change a little. this insulator has been used up to 2002 in jimmies and blazers in various models and that hole size may have varied again somewhere and the nbr was superseded again in there somewhere. one may have to bush that hole back down to size and get on with it. if they are not thick enough, what is a couple of more shims for these trucks that you love. sometimes you may have to improvise a little
truck shop won't sell to me or any other Canadian it seems. they don't want to ship to us and their telephone nbrs don't work from here. some places don't like to ship overseas. that has been the excuse a few times I have heard.
the ones from 2002 are also obsolete and I think that they wanted about $25.00 ea for them
ron
ron

Re: 65 Burb body mounts
 

I think that the real square ones were 60-62. perhaps someone could confirm that pls?
ron

Re: 65 Burb body mounts
 

here are the sizes for the bolts that go through the rear body mounts. Jon (60-66) looked it up. the part nbrs were taken from the assembly manual and you can see them there.

3771357 No 2 , 3/8 16tpi x 8 1/2" square neck
3771358 No 7, 3/8 16tpi x 5 3/4" square neck
3810759 No 4 3/8 16tpi x 4"
3811750 3/8 16tpi x 5"
http://imagizer.imageshack.us/v2/xq90/538/PtRvcO.jpg

ron

Re: 65 Burb body mounts
 

I know this is over a year old, but I can't seem to find this anywhere else. I'm doing a 66 Panel and don't have my hardware. So I'm trying to make sure the bolts are the same, plus I need to know the sizes of the sleeves/spacers.

Re: 65 Burb body mounts
 

ron posted bolt sizes on this thread. I assume panels are the same...
http://67-72chevytrucks.com/vboard/s...4&postcount=75

My understanding is you won't need sleeves if you use the reproduction ones from Truck Shop. I finally got a set from Truck Shop and will measure the hole diameters. And spacers will depend on if you need them for lining up body panels, fenders, doors.

Re: 65 Burb body mounts
 

i did work her with offline and she does have the truck shop ones. the frt bolt behind the "B" pillar is different length if I remember correctly between suburban and panel
ron

Re: 65 Burb body mounts
 

I finally got mine from truck shop so I measured the rectangular mounts:

Here's what I think they are supposed to be (Chevy parts book, ron, lewis) Truck shop measurements in blue:
length - 3.0" Truck Shop - 3.25"
width - 1.76" Truck Shop - 1.9"
height (thickness) - 0.92" w/ raised portion, 0.72" w/o raised portion
Truck Shop height - 0.69" w/ raised portion, 0.59" w/o raised portion
rubber side hole diameter - ~0.75" Truck Shop - 0.76"
steel side hole diameter - ~0.44" Truck Shop - 0.62"

Have not installed yet, anybody have a problem with them fitting between the rails, since these are a little wider?

And the diameter of the steel side hole is much larger, looks like it'lll make for a sloppier fit for the bolt?

Re: 65 Burb body mounts
 

back to the assy illustration on line 75 there shows a sleeve that goes in the rubber hole around the bolt. they may refer to that as a spacer in the writtn descrition. this fills in the differential in sizes. and use shims as required.
I spent a bit of time going back and forth with Michelle911 about putting his/her body back on and got it done and off to the body shop. I asked if they would write a little note about the experience for others but only see silence. it is a one way street for a lot of people

these insulators were superceded several times over the years. as I said previously the square mounts I believe were used in 60-62. the rectangular mount was also used from 67-72 in suburbans but only see a listing for 69-72 for rectangular insulator part # 69-09703(truck and car shop). don't know what happened to 67/68. wonder if that is the same size as the earlier insulators in the 60-66 kit?. that insulator was used for 42 years.
ron